Back in 2011, I embarked on a fun research project for Douglas Elliman's 100th anniversary, in which I traced how sales prices and rents changed since the 1910s. I explain in detail how I did the research here, but I ended up with a very loose proxy to represent price per square foot for sales and average monthly rents during each decade. Since three years has passed, I updated the results to include 2015. I didn't present the trends with inflation adjustments because I generally don't do thatbut trust me, the same pattern emerges.
It's clear that all hell broke loose (price-wise) in the 1970sas did hair length and bell-bottom sizes and NYC's bankruptcy problems. I don't have a great rationale for the surge in pricesI won't give the valid excuse that I was only 10 years old back thenso I'd love to hear from Curbed readers what caused the trend.